Phelan-McDermid Syndrome Foundation

The Phelan-McDermid Syndrome Foundation (PMSF) is a 501(c)(3) nonprofit organization is comprised of a diverse network of directors, advisors, staff members, and community volunteers who work steadfastly to improve the quality of life of all those affected by Phelan-McDermid syndrome. Phelan McDermid syndrome is a rare chromosomal disorder in which a portion of the long arm (q) of chromosome 22 is missing (deleted or monosomic). It is the mission of the Phelan-McDermid Syndrome Foundation to improve the quality of life of people affected by PMS worldwide by providing family support, accelerating research, and raising awareness.